I bought my QNAP about a year ago and was wondering if anyone know if the TS-470 pro is capable or 4K resolution/streaming? I have my QNAP connected with Kodi and would like to know if I can stream 4k videos or play 4k videos from the NAS? If not is there a way to upgrade it to give it the capability or this is a long shot but does QNAP have a upgrade program? Thanks for your help.

Thanks for the guidance guys. These options really help. Still trying to learn what is capable of the specifications i have in my setup.

Whilst i understand it is best to buy a capable device (I very much plan on this very soon), particularly to serve up full 10bit 4k, i was surprised to stumbled upon the smooth playback of an 8bit test movie (below). The test was simply via my Hisense 75m7000UWD DLNA playback (thank you gigabit). The movie, was one of 2 branded 4k downloads, which would not play back using the HDMI connection (assuming all my HDMI ports are not HDMI 2, but cables are). But they played fine with the tv pulling it.

These are compressed and not proper 4k. But what this tells me is that i may be ok doing the same with proper 4k files because of the gigabit lan, and more importantly, if it doesn't i have the device options. Which means i can simply get on with expanding my current NAS which was my reasoning for asking all this. Just awesome. Money saved!

My 470 Pro is running Plex server. My LG TV has the Plex client and plays 4K video (h265) from the NAS just fine.
However playing 4K movies in Kodi causes stuttering. This also doesn't make sense because the NAS doesn't have a 4K HDMI.

did you try enabling subtitles via plex on a 4k title?..that should start stutter

I'm playing 4K video with DTS audio and external subtitles from the TS-470 Pro on a LG TV with the Plex client app and it works fine. CPU is only around 20% because it doesn't need to do any transcoding. The first few minutes the CPU was around 96% but the NAS is also running a backup job at the same time and there was a lot of HDD activity.

However, I cannot play the same file on my iPad in the Plex app because the NAS's CPU is to weak to do the live transcoding.